Chapter 6.0 Electrical Specifications
6.1 Supply Voltage and Frequency
Turbocor compressors are designed to operate with a power supply that is within an acceptable tolerance for each
nominally rated voltage and frequency. The tables below specify the acceptable supply voltage and frequency
ranges. Using a supply voltage/frequency at or beyond the range limit will cause the compressor to shut down.
Table 6-1 Acceptable AC Voltage Range
Nominal Voltage Acceptable Voltage Range
380V 342 - 418 VAC
400V 360 - 440 VAC
460V 414 - 506 VAC
575V 518 - 635 VAC
6.2 Voltage Sag Immunity
Danfoss TTS/TGS Series Turbocor Compressors comply with SEMI F47-0706 and have been certified by a 3rd party
testing agency tested in accordance with IEC 61000-4-34. Turbocor compressors meet the criteria of SEMI F47 based
on 7.8.2 section (c) which allows for equipment that is a subsystem and/or component to pass by recovery without
operator interface. In the event of a compressor fault, Turbocor compressors are able to be reset/run remotely via
the OEMs' chiller controllers upon clearing of any active fault.
• • • CAUTION • • •
Application of a compressor to any voltage which is outside of the nominal rated voltage defined on the compressor nameplate will result
in voiding of the compressor warranty from Danfoss LLC, unless otherwise stated by Danfoss LLC. This includes any application of a 400V
compressor in a 380V application without the use of a transformer to correct the voltage going into the compressor.
NOTE
Refer to the TTS/TGS Compressor Nomenclature section of this manual for details on the compressor voltage availability.
Table 6-2 Acceptable Frequency Range
Nominal Frequency Acceptable Frequency Range
50Hz 50Hz ±5% (47Hz-53Hz)
60Hz 60Hz ±5% (57Hz-63Hz)
6.3 Compressor Current Limit and Operating Range Settings
The new compressor controller (version 3.0.0 and above; Table 1-1 Application Manual Applicability Scope) is
designed to allow a user to configure the current setting based on the intended application. The compressor defines
the Full Load Ampere (FLA) and Locked Rotor Ampere (LRA) as a range on the nameplate. The settings for the FLA
and LRA are adjustable using the Service Monitoring Tool (SMT) or directly from the customer controller application.
The 3-Phase Over Current Alarm FLA cannot be set higher than the 3-Phase Over-Current Fault limit LRA. The
maximum fault limit and alarm limit settings are dependent upon the Voltage and Model. The Model type defines
the range for the FLA and LRA values.
M-AP-001-EN Rev. S-9/8/2021 Page 45 of 136
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